From: Gerrit Renker <gerrit@erg.abdn.ac.uk>
To: dccp@vger.kernel.org
Subject: Re: Problems with idle DCCP connections
Date: Mon, 16 Aug 2010 05:19:02 +0000 [thread overview]
Message-ID: <20100816051902.GC3571@gerrit.erg.abdn.ac.uk> (raw)
In-Reply-To: <1280524030.9374.108.camel@sjerolaptop.homelinux.net>
Hi Samuel,
thank you very much for testing.
| I do, however, see a bunch of messages like the following
| in /var/log/messages when using CCID-3: "dccp_sane_rtt: RTT sample
| 8644424 out of bounds!"
|
This message warns that the network has an unusually high RTT (8.64 seconds).
The warning is issued whenever the RTT exceeds 3 seconds, to avoid that the
sending rate of CCID-3 is reduced too much (since X is proportional to s/RTT).
#define DCCP_SANE_RTT_MAX (3 * USEC_PER_SEC)
| I will pull the current tree and double check it; however, my problem
| (or at least the symptoms) appears to be fixed without CWV. I'll let you
| know how the new tree works by Monday or Tuesday.
I would be very interested in any performance reports and comments.
next prev parent reply other threads:[~2010-08-16 5:19 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-30 21:07 Problems with idle DCCP connections Samuel Jero
2010-08-02 9:19 ` Ian McDonald
2010-08-02 15:08 ` Arnaldo Carvalho de Melo
2010-08-09 5:59 ` Gerrit Renker
2010-08-11 16:17 ` Samuel Jero
2010-08-12 11:02 ` gerrit
2010-08-13 5:15 ` Gerrit Renker
2010-08-13 20:40 ` Samuel Jero
2010-08-16 5:19 ` Gerrit Renker [this message]
2010-08-16 21:14 ` Samuel Jero
2010-08-17 11:37 ` gerrit
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